"More uncontested" is a phrase that implies the absence of disagreement or opposition, suggesting that a certain situation or opinion is widely agreed upon. Antonyms for this phrase could include words like "disputed," "contested," "debated," "questioned," or "challenged." These terms indicate a lack of consensus or unanimity, and could be used in reference to anything from political issues to personal beliefs. It's worth noting, however, that the opposite of "more uncontested" is not necessarily "completely contested," as there may be varying degrees of dissent or agreement within a given context or situation.